In this module Stephanie Downey Toledo discusses phonics as the second component to reading development.
Parts of the CELF-5 can be used to probe for information and language samples, but its limitations prevent it from being used to identify disorder or disability.
The CELF-4 is a standardized test designed to assess the presence of a language disorder or delay in Spanish speaking children which should be used to probe for information and not to identify a disorder or disability.
While using they Bayley III, scores should not be calculated or used to diagnose speech and/or language delay/disorder or to determine special education services.
A normal distribution, also called a bell curve, occurs when variables (i.e., test scores) plotted on a graph fall into a regular distribution around a single mean. In a normal distribution, about 96% of the scores will fall within 2 standard deviations of the mean.
The percentile rank of a score is percentage of total scores from the normative sample that were equal or lesser than the value of the score and can be plotted on the bell curve of a normal distribution.